The Paslode 6V Oval Ni-Cd Rechargeable Cordless Battery works in legacy Paslode Cordless Ni-Cd Framing and Finish nailers. It can drive up to 4000 nails per charge so most remodelers can keep working for weeks without stopping to recharge. When re-charging is needed, it takes only 2 hours to be nailing non-stop again.